The nfc tantra pen is a ballpoint pen in which a microchip for NFC is inserted. This technology (Near Field Communication) works via proximity mechanism and allows you to transfer data from one object/device to another just by bringing the two objects together. It works via snap mechanism. The material is plastic and the type of finish, glossy. With metal clip and chrome details to make it even more premium. The nfc tantra pen is available in two writing colors: blue and black. Ad hoc packaging and instruction leaflet available upon request. Customizable on the entire barrel